Alert archive / Missouri / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 76, NWS Kansas City, MO

July 11, 1990Callaway County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jul 11, 1990, 12:45 AM CDT for Callaway County, Missouri. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jul 11, 1990, 12:45 AM CDT (05:45 UTC)
Expired
Jul 11, 1990, 1:40 AM CDT
In force
55 min
Issued by
NWS Kansas City, MO
Area
Whole counties

County Callaway County, MO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 5.8 hours before the alert went out and 271 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 1990-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1052 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 1990-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1052 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1568 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCOU 110545
SVRCOU
MOC019-027-110645-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE COLUMBIA MO
1245 AM CDT WED JUL 11 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 145 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE CENTRAL PART OF MISSOURI
      EASTERN BOONE...CALLAWAY

AT 1240 AM CDT A SEVERE THUNDERSTORM WAS 14 MILES SOUTHEAST
OF COLUMBIA AT COLUMBIA REGIONAL AIRPORT MOVING EAST AT 35 MILES
AN HOUR. 58 MILE PER HOUR WINDS WERE RECORDED AT THE AIRPORT
AT 1238 AM.

PEOPLE SHOULD MOVE INSIDE AND AWAY FROM WINDOWS.  STAY OFF OF THE
TELEPHONE UNLESS FOR EMERGENCY.  DO NOT USE ELECTICAL APPLIANCES
UN5TIL THE STORM HAS PASSED.

 LA GREE

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 10, 7:43 PM CDT, 5 hours 2 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
730 PM CDT TUE JUL 10 1990

AT 730 PM...THUNDERSTORMS WITH HEAVY RAIN WERE IN NORTH CENTRAL
MISSOURI...75 MILES EAST OF KANSAS CITY...FROM JUST EAST OF BROWNING
MISSOURI TO NEAR SLATER MISSOURI.

THESE THUNDERSTORMS MAY BE ACCOMPANIED BY HEAVY DOWNPOURS...SMALL
HAIL...AND WIND GUSTS OF UP TO 50 MILES AN HOUR.

THESE STORMS WERE PART OF A 55 MILE WIDE AREA OF SHOWERS AND
THUNDERSTORMS THAT EXTENDED FROM 100 MILES NORTHEAST OF KANSAS CITY...
TO 80 MILES SOUTH OF TOPEKA KANSAS.  SCATTERED SHOWERS AND THUNDERSTORMS
CONTINUED TO MOVE THRU THE SOUTHERN AND EASTERN PARTS OF THE KANSAS
CITY METRO AREA.

THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 30 MILES AN HOUR.
Special weather statement, Jul 10, 8:58 PM CDT, 3 hours 47 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE KANSAS CITY INTERNATIONAL AIRPORT MO
830 PM CDT TUE JUL 10 1990

AT 830 PM...SCATTERED SHOWERS AND THUNDERSTORMS WERE ACROSS NORTHEAST

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 11, 12:45 AM CDTSevere Thunderstorm WarningEAXBoone60 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1990Every severe thunderstorm warning in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.